The rebuilding of the last-place Brewers will be overseen by a new general manager. Doug Melvin is leaving his job after 13 years in Milwaukee. The team and Melvin said Tuesday he will continue to lead the baseball operations department before "transitioning into an advisory role." Owner Mark Attanasio has hired an executive search firm to help find a new GM. Attanasio plans to begin asking for permission to interview candidates this week during the owners meeting in Chicago, the team said. "We're trying to be ahead of the rumors and speculation," said Melvin, 63, who has been on the job for the Brewers since September 2002. "At some point there has to be a transition from Mark's standpoint and for myself."I think it's time to start thinking about giving Mark the opportunity finding his next generation of a general manager. I love what I'm doing; I love Milwaukee. I'd like to see this through as much as I can and get back to playoff baseball."In May, we sort of came to an agreement. It's a transition for me and my life and a transition that Mark will have to undertake, also."The roster makeover has already begun under Melvin when he dealt veterans including CF Carlos Gomez , 3B Aramis Ramirez and LHP Gerardo Parra before the July 31 trade deadline. FERNANDEZ BACK ON DL: The Marlins placed ace RHP Jose Fernandez on the 15-day disabled list with a right bicep strain, and the former Alonso standout expects to return this season. Fernandez, who said he's relieved there was no bigger issue, had made seven starts since returning from Tommy John surgery. A'S: LHP Barry Zito , 37, who has been attempting a comeback with Triple-A Nashville, went on the minor-league disabled list with what was called a minor shoulder injury. BLUE JAYS: RHP Marcus Stroman threw off a mound for the first time since tearing knee ligaments in spring training, the next step in a possible September return. BREWERS: RF Ryan Braun was held out of the lineup because of a back problem. METS: 1B Lucas Duda was out of the starting lineup because of back stiffness. NATIONALS: RF Bryce Harper was out of the starting lineup a day after banging his left knee while making a sliding catch. RANGERS: LHP Cole Hamels was scratched from his scheduled start Thursday because of a groin issue. RED SOX: RHP Jean Machi will get first shot at replacing injured RHP Koji Uehara as closer, manager John Farrell told the Boston Globe . TIGERS: 1B Miguel Cabrera could be activated from the disabled list this weekend after taking batting practice and running the bases. The two-time AL MVP has not played since July 3, when he suffered a strained left calf.